A single trading account is a set of services of brokerage that approve a client to sell on multiple sectors of the financial market practicing only one single account. In lately, the number of companies providing services on Forex market as well as CFD markets is constantly growing. In this respect, there is a rising competition of brokerage corporations working in this business. Instead, it innovates conditions for company' s users as well as produces more opportunities for efficient trading. Firstly, lies in companies have turned into lower. When this source was exhausted, ECN technology and PAMM accounts have appeared.